Philips Semiconductors
Product specification
Remote 8-bit I/O expander for I
2
C-bus
5
5.1
PINNING
DIP16 and SO16 packages
SYMBOL
A0
A1
A2
P0
P1
P2
P3
V
SS
P4
P5
P6
P7
INT
SCL
SDA
V
DD
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
address input 0
address input 1
address input 2
quasi-bidirectional I/O 0
quasi-bidirectional I/O 1
quasi-bidirectional I/O 2
quasi-bidirectional I/O 3
supply ground
quasi-bidirectional I/O 4
quasi-bidirectional I/O 5
quasi-bidirectional I/O 6
quasi-bidirectional I/O 7
interrupt output (active LOW)
serial clock line
serial data line
supply voltage
DESCRIPTION
PCF8574
handbook, halfpage
A0 1
A1 2
A2 3
P0 4
16 VDD
15 SDA
14 SCL
handbook, halfpage
A0 1
A1
2
16 VDD
15 SDA
14 SCL
A2 3
P0
4
PCF8574P
13 INT
P1 5
PCF8574AP
12 P7
11 P6
10 P5
9
MBD979
P1 5
P2 6
P3 7
VSS
8
PCF8574T
13 INT
PCF8574AT
12 P7
11 P6
10 P5
9
MCE001
P2 6
P3 7
VSS
8
P4
P4
Fig.2 Pin configuration (DIP16).
Fig.3 Pin configuration (SO16).
2002 Nov 22
5
PHILIPS [ NXP SEMICONDUCTORS ]
